java -Xmx8000000000 -jar /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-64bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem17_label59_true-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-1dbac8b [2018-10-26 21:57:50,841 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-26 21:57:50,843 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-26 21:57:50,855 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-26 21:57:50,856 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-26 21:57:50,857 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-26 21:57:50,858 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-26 21:57:50,860 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-26 21:57:50,862 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-26 21:57:50,863 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-26 21:57:50,864 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-26 21:57:50,865 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-26 21:57:50,866 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-26 21:57:50,867 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-26 21:57:50,868 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-26 21:57:50,869 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-26 21:57:50,870 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-26 21:57:50,872 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-26 21:57:50,874 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-26 21:57:50,876 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-26 21:57:50,877 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-26 21:57:50,878 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-26 21:57:50,881 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-10-26 21:57:50,881 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-10-26 21:57:50,882 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-10-26 21:57:50,883 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-10-26 21:57:50,884 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-10-26 21:57:50,885 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-10-26 21:57:50,886 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-10-26 21:57:50,887 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-10-26 21:57:50,887 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-10-26 21:57:50,888 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... 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[2018-10-26 21:57:50,893 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-64bit-Automizer_Default.epf [2018-10-26 21:57:50,926 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-26 21:57:50,926 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-26 21:57:50,927 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-10-26 21:57:50,928 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-10-26 21:57:50,931 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-10-26 21:57:50,932 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-10-26 21:57:50,932 INFO L133 SettingsManager]: * Use SBE=true [2018-10-26 21:57:50,932 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-10-26 21:57:50,932 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-10-26 21:57:50,933 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-10-26 21:57:50,933 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-10-26 21:57:50,933 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-10-26 21:57:50,933 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-10-26 21:57:50,933 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-10-26 21:57:50,935 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-10-26 21:57:50,935 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-26 21:57:50,936 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-10-26 21:57:50,936 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-10-26 21:57:50,936 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-10-26 21:57:50,936 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-26 21:57:50,936 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-26 21:57:50,937 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-10-26 21:57:50,938 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-10-26 21:57:50,938 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-10-26 21:57:50,939 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-10-26 21:57:50,939 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-26 21:57:50,939 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-10-26 21:57:50,939 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-10-26 21:57:51,001 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-26 21:57:51,014 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-26 21:57:51,018 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-26 21:57:51,019 INFO L271 PluginConnector]: Initializing CDTParser... [2018-10-26 21:57:51,020 INFO L276 PluginConnector]: CDTParser initialized [2018-10-26 21:57:51,020 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem17_label59_true-unreach-call.c [2018-10-26 21:57:51,078 INFO L218 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/8fb34f1a6/b5d451d5fe344903b6ad8fead500516b/FLAGa284d51bc [2018-10-26 21:57:51,769 INFO L298 CDTParser]: Found 1 translation units. [2018-10-26 21:57:51,770 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem17_label59_true-unreach-call.c [2018-10-26 21:57:51,800 INFO L346 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/8fb34f1a6/b5d451d5fe344903b6ad8fead500516b/FLAGa284d51bc [2018-10-26 21:57:51,820 INFO L354 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/8fb34f1a6/b5d451d5fe344903b6ad8fead500516b [2018-10-26 21:57:51,833 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-26 21:57:51,836 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-10-26 21:57:51,839 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-10-26 21:57:51,839 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-10-26 21:57:51,844 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-10-26 21:57:51,845 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.10 09:57:51" (1/1) ... [2018-10-26 21:57:51,849 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@441f49ea and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 09:57:51, skipping insertion in model container [2018-10-26 21:57:51,849 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.10 09:57:51" (1/1) ... [2018-10-26 21:57:51,860 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-10-26 21:57:51,992 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-10-26 21:57:53,021 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-26 21:57:53,025 INFO L189 MainTranslator]: Completed pre-run [2018-10-26 21:57:53,448 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-26 21:57:53,473 INFO L193 MainTranslator]: Completed translation [2018-10-26 21:57:53,474 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 09:57:53 WrapperNode [2018-10-26 21:57:53,474 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-10-26 21:57:53,475 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-10-26 21:57:53,475 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-10-26 21:57:53,476 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-10-26 21:57:53,486 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 09:57:53" (1/1) ... [2018-10-26 21:57:53,555 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 09:57:53" (1/1) ... [2018-10-26 21:57:54,039 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-10-26 21:57:54,039 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-26 21:57:54,039 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-26 21:57:54,039 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-26 21:57:54,050 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 09:57:53" (1/1) ... [2018-10-26 21:57:54,050 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 09:57:53" (1/1) ... [2018-10-26 21:57:54,078 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 09:57:53" (1/1) ... [2018-10-26 21:57:54,079 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 09:57:53" (1/1) ... [2018-10-26 21:57:54,197 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 09:57:53" (1/1) ... [2018-10-26 21:57:54,222 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 09:57:53" (1/1) ... [2018-10-26 21:57:54,267 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 09:57:53" (1/1) ... [2018-10-26 21:57:54,325 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-26 21:57:54,326 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-26 21:57:54,326 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-26 21:57:54,326 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-26 21:57:54,327 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 09:57:53" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-26 21:57:54,398 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2018-10-26 21:57:54,399 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-26 21:57:54,399 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-26 21:58:06,170 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-26 21:58:06,171 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 09:58:06 BoogieIcfgContainer [2018-10-26 21:58:06,172 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-26 21:58:06,173 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-26 21:58:06,173 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-26 21:58:06,176 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-26 21:58:06,177 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.10 09:57:51" (1/3) ... [2018-10-26 21:58:06,179 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@634dcbbc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.10 09:58:06, skipping insertion in model container [2018-10-26 21:58:06,179 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 09:57:53" (2/3) ... [2018-10-26 21:58:06,179 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@634dcbbc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.10 09:58:06, skipping insertion in model container [2018-10-26 21:58:06,181 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 09:58:06" (3/3) ... [2018-10-26 21:58:06,182 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem17_label59_true-unreach-call.c [2018-10-26 21:58:06,191 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-10-26 21:58:06,200 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-10-26 21:58:06,218 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-10-26 21:58:06,259 INFO L135 ementStrategyFactory]: Using default assertion order modulation [2018-10-26 21:58:06,260 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-26 21:58:06,260 INFO L383 AbstractCegarLoop]: Hoare is true [2018-10-26 21:58:06,261 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-10-26 21:58:06,261 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-26 21:58:06,261 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-26 21:58:06,261 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-26 21:58:06,261 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-26 21:58:06,261 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-26 21:58:06,294 INFO L276 IsEmpty]: Start isEmpty. Operand 591 states. [2018-10-26 21:58:06,302 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2018-10-26 21:58:06,302 INFO L367 BasicCegarLoop]: Found error trace [2018-10-26 21:58:06,303 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-26 21:58:06,306 INFO L424 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-26 21:58:06,312 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-26 21:58:06,313 INFO L82 PathProgramCache]: Analyzing trace with hash 575043410, now seen corresponding path program 1 times [2018-10-26 21:58:06,315 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-26 21:58:06,316 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-26 21:58:06,366 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 21:58:06,367 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-26 21:58:06,367 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 21:58:06,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 21:58:06,738 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-26 21:58:06,740 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-26 21:58:06,741 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-10-26 21:58:06,746 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-26 21:58:06,760 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-26 21:58:06,761 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-26 21:58:06,763 INFO L87 Difference]: Start difference. First operand 591 states. Second operand 4 states. [2018-10-26 21:58:17,801 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-26 21:58:17,801 INFO L93 Difference]: Finished difference Result 2124 states and 3951 transitions. [2018-10-26 21:58:17,802 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-26 21:58:17,803 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 33 [2018-10-26 21:58:17,804 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-26 21:58:17,839 INFO L225 Difference]: With dead ends: 2124 [2018-10-26 21:58:17,839 INFO L226 Difference]: Without dead ends: 1526 [2018-10-26 21:58:17,846 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-26 21:58:17,866 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1526 states. [2018-10-26 21:58:17,958 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1526 to 1032. [2018-10-26 21:58:17,960 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1032 states. [2018-10-26 21:58:17,964 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1032 states to 1032 states and 1858 transitions. [2018-10-26 21:58:17,968 INFO L78 Accepts]: Start accepts. Automaton has 1032 states and 1858 transitions. Word has length 33 [2018-10-26 21:58:17,969 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-26 21:58:17,969 INFO L481 AbstractCegarLoop]: Abstraction has 1032 states and 1858 transitions. [2018-10-26 21:58:17,969 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-26 21:58:17,969 INFO L276 IsEmpty]: Start isEmpty. Operand 1032 states and 1858 transitions. [2018-10-26 21:58:17,976 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2018-10-26 21:58:17,976 INFO L367 BasicCegarLoop]: Found error trace [2018-10-26 21:58:17,978 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-26 21:58:17,978 INFO L424 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-26 21:58:17,978 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-26 21:58:17,979 INFO L82 PathProgramCache]: Analyzing trace with hash 820803097, now seen corresponding path program 1 times [2018-10-26 21:58:17,979 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-26 21:58:17,979 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-26 21:58:17,980 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 21:58:17,981 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-26 21:58:17,981 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 21:58:18,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 21:58:18,279 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 30 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-26 21:58:18,280 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-26 21:58:18,280 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-10-26 21:58:18,282 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-26 21:58:18,282 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-26 21:58:18,283 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-26 21:58:18,283 INFO L87 Difference]: Start difference. First operand 1032 states and 1858 transitions. Second operand 4 states. [2018-10-26 21:58:26,780 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-26 21:58:26,781 INFO L93 Difference]: Finished difference Result 2924 states and 5354 transitions. [2018-10-26 21:58:26,781 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-10-26 21:58:26,781 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 101 [2018-10-26 21:58:26,782 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-26 21:58:26,792 INFO L225 Difference]: With dead ends: 2924 [2018-10-26 21:58:26,792 INFO L226 Difference]: Without dead ends: 1894 [2018-10-26 21:58:26,801 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-26 21:58:26,803 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1894 states. [2018-10-26 21:58:26,845 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1894 to 1894. [2018-10-26 21:58:26,845 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1894 states. [2018-10-26 21:58:26,850 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1894 states to 1894 states and 2838 transitions. [2018-10-26 21:58:26,851 INFO L78 Accepts]: Start accepts. Automaton has 1894 states and 2838 transitions. Word has length 101 [2018-10-26 21:58:26,852 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-26 21:58:26,852 INFO L481 AbstractCegarLoop]: Abstraction has 1894 states and 2838 transitions. [2018-10-26 21:58:26,852 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-26 21:58:26,852 INFO L276 IsEmpty]: Start isEmpty. Operand 1894 states and 2838 transitions. [2018-10-26 21:58:26,859 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2018-10-26 21:58:26,859 INFO L367 BasicCegarLoop]: Found error trace [2018-10-26 21:58:26,860 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-26 21:58:26,860 INFO L424 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-26 21:58:26,860 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-26 21:58:26,860 INFO L82 PathProgramCache]: Analyzing trace with hash 1739872998, now seen corresponding path program 1 times [2018-10-26 21:58:26,861 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-26 21:58:26,861 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-26 21:58:26,862 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 21:58:26,862 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-26 21:58:26,863 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 21:58:26,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 21:58:27,322 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 30 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-26 21:58:27,323 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-26 21:58:27,323 INFO L225 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-10-26 21:58:27,341 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-26 21:58:27,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 21:58:27,400 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-26 21:58:27,622 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 30 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-26 21:58:27,657 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-10-26 21:58:27,657 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2018-10-26 21:58:27,658 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-10-26 21:58:27,659 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-10-26 21:58:27,659 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2018-10-26 21:58:27,659 INFO L87 Difference]: Start difference. First operand 1894 states and 2838 transitions. Second operand 6 states. [2018-10-26 21:58:42,528 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-26 21:58:42,529 INFO L93 Difference]: Finished difference Result 7665 states and 11401 transitions. [2018-10-26 21:58:42,529 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-10-26 21:58:42,529 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 104 [2018-10-26 21:58:42,530 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-26 21:58:42,549 INFO L225 Difference]: With dead ends: 7665 [2018-10-26 21:58:42,549 INFO L226 Difference]: Without dead ends: 3983 [2018-10-26 21:58:42,554 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 107 GetRequests, 102 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2018-10-26 21:58:42,558 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3983 states. [2018-10-26 21:58:42,619 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3983 to 3981. [2018-10-26 21:58:42,620 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3981 states. [2018-10-26 21:58:42,628 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3981 states to 3981 states and 4944 transitions. [2018-10-26 21:58:42,628 INFO L78 Accepts]: Start accepts. Automaton has 3981 states and 4944 transitions. Word has length 104 [2018-10-26 21:58:42,629 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-26 21:58:42,629 INFO L481 AbstractCegarLoop]: Abstraction has 3981 states and 4944 transitions. [2018-10-26 21:58:42,629 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-10-26 21:58:42,629 INFO L276 IsEmpty]: Start isEmpty. Operand 3981 states and 4944 transitions. [2018-10-26 21:58:42,635 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 255 [2018-10-26 21:58:42,635 INFO L367 BasicCegarLoop]: Found error trace [2018-10-26 21:58:42,636 INFO L375 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-26 21:58:42,636 INFO L424 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-26 21:58:42,636 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-26 21:58:42,636 INFO L82 PathProgramCache]: Analyzing trace with hash 1172872533, now seen corresponding path program 1 times [2018-10-26 21:58:42,636 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-26 21:58:42,637 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-26 21:58:42,637 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 21:58:42,638 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-26 21:58:42,638 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 21:58:42,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 21:58:42,873 INFO L134 CoverageAnalysis]: Checked inductivity of 293 backedges. 262 proven. 0 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2018-10-26 21:58:42,874 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-26 21:58:42,874 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-10-26 21:58:42,875 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-10-26 21:58:42,875 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-10-26 21:58:42,875 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-26 21:58:42,875 INFO L87 Difference]: Start difference. First operand 3981 states and 4944 transitions. Second operand 3 states. [2018-10-26 21:58:48,604 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-26 21:58:48,605 INFO L93 Difference]: Finished difference Result 10084 states and 12888 transitions. [2018-10-26 21:58:48,606 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-10-26 21:58:48,606 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 254 [2018-10-26 21:58:48,608 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-26 21:58:48,637 INFO L225 Difference]: With dead ends: 10084 [2018-10-26 21:58:48,637 INFO L226 Difference]: Without dead ends: 6540 [2018-10-26 21:58:48,644 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-26 21:58:48,649 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6540 states. [2018-10-26 21:58:48,751 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6540 to 6540. [2018-10-26 21:58:48,751 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6540 states. [2018-10-26 21:58:48,764 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6540 states to 6540 states and 7960 transitions. [2018-10-26 21:58:48,764 INFO L78 Accepts]: Start accepts. Automaton has 6540 states and 7960 transitions. Word has length 254 [2018-10-26 21:58:48,765 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-26 21:58:48,765 INFO L481 AbstractCegarLoop]: Abstraction has 6540 states and 7960 transitions. [2018-10-26 21:58:48,765 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-10-26 21:58:48,766 INFO L276 IsEmpty]: Start isEmpty. Operand 6540 states and 7960 transitions. [2018-10-26 21:58:48,772 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 360 [2018-10-26 21:58:48,772 INFO L367 BasicCegarLoop]: Found error trace [2018-10-26 21:58:48,773 INFO L375 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-26 21:58:48,773 INFO L424 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-26 21:58:48,773 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-26 21:58:48,774 INFO L82 PathProgramCache]: Analyzing trace with hash 747201884, now seen corresponding path program 1 times [2018-10-26 21:58:48,774 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-26 21:58:48,774 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-26 21:58:48,775 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 21:58:48,775 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-26 21:58:48,775 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 21:58:48,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 21:58:49,405 INFO L134 CoverageAnalysis]: Checked inductivity of 561 backedges. 345 proven. 83 refuted. 0 times theorem prover too weak. 133 trivial. 0 not checked. [2018-10-26 21:58:49,405 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-26 21:58:49,405 INFO L225 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-10-26 21:58:49,414 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-26 21:58:49,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 21:58:49,537 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-26 21:58:49,832 INFO L134 CoverageAnalysis]: Checked inductivity of 561 backedges. 345 proven. 83 refuted. 0 times theorem prover too weak. 133 trivial. 0 not checked. [2018-10-26 21:58:49,858 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-10-26 21:58:49,859 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 3] total 6 [2018-10-26 21:58:49,860 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-10-26 21:58:49,860 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-10-26 21:58:49,860 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2018-10-26 21:58:49,863 INFO L87 Difference]: Start difference. First operand 6540 states and 7960 transitions. Second operand 7 states. [2018-10-26 21:59:08,569 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-26 21:59:08,570 INFO L93 Difference]: Finished difference Result 25891 states and 31137 transitions. [2018-10-26 21:59:08,571 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-10-26 21:59:08,571 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 359 [2018-10-26 21:59:08,572 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-26 21:59:08,628 INFO L225 Difference]: With dead ends: 25891 [2018-10-26 21:59:08,629 INFO L226 Difference]: Without dead ends: 16759 [2018-10-26 21:59:08,639 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 365 GetRequests, 357 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2018-10-26 21:59:08,651 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16759 states. [2018-10-26 21:59:08,853 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16759 to 16319. [2018-10-26 21:59:08,853 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16319 states. [2018-10-26 21:59:08,875 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16319 states to 16319 states and 18499 transitions. [2018-10-26 21:59:08,876 INFO L78 Accepts]: Start accepts. Automaton has 16319 states and 18499 transitions. Word has length 359 [2018-10-26 21:59:08,876 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-26 21:59:08,876 INFO L481 AbstractCegarLoop]: Abstraction has 16319 states and 18499 transitions. [2018-10-26 21:59:08,876 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-10-26 21:59:08,877 INFO L276 IsEmpty]: Start isEmpty. Operand 16319 states and 18499 transitions. [2018-10-26 21:59:08,906 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 665 [2018-10-26 21:59:08,906 INFO L367 BasicCegarLoop]: Found error trace [2018-10-26 21:59:08,906 INFO L375 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-26 21:59:08,907 INFO L424 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-26 21:59:08,907 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-26 21:59:08,907 INFO L82 PathProgramCache]: Analyzing trace with hash 1685108873, now seen corresponding path program 1 times [2018-10-26 21:59:08,908 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-26 21:59:08,908 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-26 21:59:08,908 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 21:59:08,909 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-26 21:59:08,909 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 21:59:09,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 21:59:09,681 INFO L134 CoverageAnalysis]: Checked inductivity of 1094 backedges. 552 proven. 0 refuted. 0 times theorem prover too weak. 542 trivial. 0 not checked. [2018-10-26 21:59:09,682 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-26 21:59:09,682 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-10-26 21:59:09,683 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-10-26 21:59:09,684 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-10-26 21:59:09,684 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-26 21:59:09,684 INFO L87 Difference]: Start difference. First operand 16319 states and 18499 transitions. Second operand 3 states. [2018-10-26 21:59:13,740 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-26 21:59:13,740 INFO L93 Difference]: Finished difference Result 43301 states and 49461 transitions. [2018-10-26 21:59:13,740 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-10-26 21:59:13,741 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 664 [2018-10-26 21:59:13,742 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-26 21:59:13,793 INFO L225 Difference]: With dead ends: 43301 [2018-10-26 21:59:13,793 INFO L226 Difference]: Without dead ends: 27410 [2018-10-26 21:59:13,812 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-26 21:59:13,836 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27410 states. [2018-10-26 21:59:14,305 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27410 to 26967. [2018-10-26 21:59:14,306 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 26967 states. [2018-10-26 21:59:14,345 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26967 states to 26967 states and 30793 transitions. [2018-10-26 21:59:14,345 INFO L78 Accepts]: Start accepts. Automaton has 26967 states and 30793 transitions. Word has length 664 [2018-10-26 21:59:14,346 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-26 21:59:14,346 INFO L481 AbstractCegarLoop]: Abstraction has 26967 states and 30793 transitions. [2018-10-26 21:59:14,347 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-10-26 21:59:14,347 INFO L276 IsEmpty]: Start isEmpty. Operand 26967 states and 30793 transitions. [2018-10-26 21:59:14,396 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 721 [2018-10-26 21:59:14,396 INFO L367 BasicCegarLoop]: Found error trace [2018-10-26 21:59:14,397 INFO L375 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-26 21:59:14,397 INFO L424 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-26 21:59:14,398 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-26 21:59:14,398 INFO L82 PathProgramCache]: Analyzing trace with hash 1407889680, now seen corresponding path program 1 times [2018-10-26 21:59:14,398 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-26 21:59:14,399 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-26 21:59:14,399 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 21:59:14,403 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-26 21:59:14,403 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 21:59:14,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 21:59:15,289 INFO L134 CoverageAnalysis]: Checked inductivity of 666 backedges. 363 proven. 0 refuted. 0 times theorem prover too weak. 303 trivial. 0 not checked. [2018-10-26 21:59:15,289 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-26 21:59:15,289 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-10-26 21:59:15,290 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-10-26 21:59:15,291 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-10-26 21:59:15,291 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-26 21:59:15,291 INFO L87 Difference]: Start difference. First operand 26967 states and 30793 transitions. Second operand 3 states. [2018-10-26 21:59:20,321 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-26 21:59:20,322 INFO L93 Difference]: Finished difference Result 79174 states and 90350 transitions. [2018-10-26 21:59:20,322 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-10-26 21:59:20,322 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 720 [2018-10-26 21:59:20,323 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-26 21:59:20,422 INFO L225 Difference]: With dead ends: 79174 [2018-10-26 21:59:20,423 INFO L226 Difference]: Without dead ends: 52634 [2018-10-26 21:59:20,458 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-26 21:59:20,501 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52634 states. [2018-10-26 21:59:21,306 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52634 to 52629. [2018-10-26 21:59:21,307 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 52629 states. [2018-10-26 21:59:21,377 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52629 states to 52629 states and 59971 transitions. [2018-10-26 21:59:21,377 INFO L78 Accepts]: Start accepts. Automaton has 52629 states and 59971 transitions. Word has length 720 [2018-10-26 21:59:21,379 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-26 21:59:21,379 INFO L481 AbstractCegarLoop]: Abstraction has 52629 states and 59971 transitions. [2018-10-26 21:59:21,379 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-10-26 21:59:21,379 INFO L276 IsEmpty]: Start isEmpty. Operand 52629 states and 59971 transitions. [2018-10-26 21:59:21,436 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 809 [2018-10-26 21:59:21,436 INFO L367 BasicCegarLoop]: Found error trace [2018-10-26 21:59:21,437 INFO L375 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-26 21:59:21,437 INFO L424 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-26 21:59:21,438 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-26 21:59:21,438 INFO L82 PathProgramCache]: Analyzing trace with hash 195927953, now seen corresponding path program 1 times [2018-10-26 21:59:21,438 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-26 21:59:21,438 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-26 21:59:21,439 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 21:59:21,439 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-26 21:59:21,440 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 21:59:21,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 21:59:23,311 INFO L134 CoverageAnalysis]: Checked inductivity of 1133 backedges. 598 proven. 83 refuted. 0 times theorem prover too weak. 452 trivial. 0 not checked. [2018-10-26 21:59:23,311 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-26 21:59:23,311 INFO L225 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-10-26 21:59:23,320 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-26 21:59:23,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 21:59:23,539 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-26 21:59:24,243 INFO L134 CoverageAnalysis]: Checked inductivity of 1133 backedges. 598 proven. 83 refuted. 0 times theorem prover too weak. 452 trivial. 0 not checked. [2018-10-26 21:59:24,264 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-10-26 21:59:24,265 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 3] total 8 [2018-10-26 21:59:24,266 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-10-26 21:59:24,266 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-10-26 21:59:24,266 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2018-10-26 21:59:24,266 INFO L87 Difference]: Start difference. First operand 52629 states and 59971 transitions. Second operand 9 states. [2018-10-26 21:59:36,338 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-26 21:59:36,339 INFO L93 Difference]: Finished difference Result 110376 states and 125334 transitions. [2018-10-26 21:59:36,339 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-10-26 21:59:36,339 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 808 [2018-10-26 21:59:36,340 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-26 21:59:36,439 INFO L225 Difference]: With dead ends: 110376 [2018-10-26 21:59:36,440 INFO L226 Difference]: Without dead ends: 58175 [2018-10-26 21:59:36,476 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 815 GetRequests, 806 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2018-10-26 21:59:36,518 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58175 states. [2018-10-26 21:59:37,044 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58175 to 58167. [2018-10-26 21:59:37,045 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 58167 states. [2018-10-26 21:59:37,100 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58167 states to 58167 states and 65718 transitions. [2018-10-26 21:59:37,100 INFO L78 Accepts]: Start accepts. Automaton has 58167 states and 65718 transitions. Word has length 808 [2018-10-26 21:59:37,101 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-26 21:59:37,101 INFO L481 AbstractCegarLoop]: Abstraction has 58167 states and 65718 transitions. [2018-10-26 21:59:37,101 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-10-26 21:59:37,101 INFO L276 IsEmpty]: Start isEmpty. Operand 58167 states and 65718 transitions. [2018-10-26 21:59:37,151 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 885 [2018-10-26 21:59:37,152 INFO L367 BasicCegarLoop]: Found error trace [2018-10-26 21:59:37,153 INFO L375 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-26 21:59:37,153 INFO L424 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-26 21:59:37,153 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-26 21:59:37,154 INFO L82 PathProgramCache]: Analyzing trace with hash -1932019546, now seen corresponding path program 1 times [2018-10-26 21:59:37,154 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-26 21:59:37,154 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-26 21:59:37,155 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 21:59:37,155 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-26 21:59:37,155 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 21:59:37,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 21:59:38,026 WARN L179 SmtUtils]: Spent 306.00 ms on a formula simplification. DAG size of input: 15 DAG size of output: 5 [2018-10-26 21:59:39,258 INFO L134 CoverageAnalysis]: Checked inductivity of 1546 backedges. 1043 proven. 0 refuted. 0 times theorem prover too weak. 503 trivial. 0 not checked. [2018-10-26 21:59:39,258 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-26 21:59:39,259 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-10-26 21:59:39,259 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-26 21:59:39,259 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-26 21:59:39,260 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-26 21:59:39,260 INFO L87 Difference]: Start difference. First operand 58167 states and 65718 transitions. Second operand 4 states. [2018-10-26 21:59:43,183 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-26 21:59:43,183 INFO L93 Difference]: Finished difference Result 141905 states and 160958 transitions. [2018-10-26 21:59:43,184 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-26 21:59:43,184 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 884 [2018-10-26 21:59:43,185 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-26 21:59:43,292 INFO L225 Difference]: With dead ends: 141905 [2018-10-26 21:59:43,293 INFO L226 Difference]: Without dead ends: 84592 [2018-10-26 21:59:43,340 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-26 21:59:43,406 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 84592 states. [2018-10-26 21:59:44,019 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 84592 to 69657. [2018-10-26 21:59:44,019 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 69657 states. [2018-10-26 21:59:44,103 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69657 states to 69657 states and 78343 transitions. [2018-10-26 21:59:44,104 INFO L78 Accepts]: Start accepts. Automaton has 69657 states and 78343 transitions. Word has length 884 [2018-10-26 21:59:44,105 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-26 21:59:44,105 INFO L481 AbstractCegarLoop]: Abstraction has 69657 states and 78343 transitions. [2018-10-26 21:59:44,105 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-26 21:59:44,105 INFO L276 IsEmpty]: Start isEmpty. Operand 69657 states and 78343 transitions. [2018-10-26 21:59:44,140 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 896 [2018-10-26 21:59:44,140 INFO L367 BasicCegarLoop]: Found error trace [2018-10-26 21:59:44,141 INFO L375 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-26 21:59:44,142 INFO L424 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-26 21:59:44,142 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-26 21:59:44,142 INFO L82 PathProgramCache]: Analyzing trace with hash 526120070, now seen corresponding path program 1 times [2018-10-26 21:59:44,142 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-26 21:59:44,142 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-26 21:59:44,143 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 21:59:44,143 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-26 21:59:44,143 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 21:59:44,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 21:59:46,311 INFO L134 CoverageAnalysis]: Checked inductivity of 1546 backedges. 1074 proven. 0 refuted. 0 times theorem prover too weak. 472 trivial. 0 not checked. [2018-10-26 21:59:46,311 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-26 21:59:46,312 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-10-26 21:59:46,313 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-10-26 21:59:46,313 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-10-26 21:59:46,313 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2018-10-26 21:59:46,313 INFO L87 Difference]: Start difference. First operand 69657 states and 78343 transitions. Second operand 5 states. [2018-10-26 21:59:56,112 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-26 21:59:56,112 INFO L93 Difference]: Finished difference Result 173017 states and 194619 transitions. [2018-10-26 21:59:56,113 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-10-26 21:59:56,113 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 895 [2018-10-26 21:59:56,114 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-26 21:59:56,231 INFO L225 Difference]: With dead ends: 173017 [2018-10-26 21:59:56,231 INFO L226 Difference]: Without dead ends: 103362 [2018-10-26 21:59:56,282 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2018-10-26 21:59:56,363 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 103362 states. [2018-10-26 21:59:57,122 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 103362 to 84601. [2018-10-26 21:59:57,122 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 84601 states. [2018-10-26 21:59:57,205 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84601 states to 84601 states and 94719 transitions. [2018-10-26 21:59:57,205 INFO L78 Accepts]: Start accepts. Automaton has 84601 states and 94719 transitions. Word has length 895 [2018-10-26 21:59:57,206 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-26 21:59:57,206 INFO L481 AbstractCegarLoop]: Abstraction has 84601 states and 94719 transitions. [2018-10-26 21:59:57,206 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-10-26 21:59:57,206 INFO L276 IsEmpty]: Start isEmpty. Operand 84601 states and 94719 transitions. [2018-10-26 21:59:57,244 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 901 [2018-10-26 21:59:57,244 INFO L367 BasicCegarLoop]: Found error trace [2018-10-26 21:59:57,245 INFO L375 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-26 21:59:57,245 INFO L424 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-26 21:59:57,245 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-26 21:59:57,246 INFO L82 PathProgramCache]: Analyzing trace with hash 707144241, now seen corresponding path program 1 times [2018-10-26 21:59:57,246 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-26 21:59:57,246 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-26 21:59:57,247 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 21:59:57,247 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-26 21:59:57,247 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 21:59:57,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 21:59:59,009 INFO L134 CoverageAnalysis]: Checked inductivity of 1571 backedges. 823 proven. 404 refuted. 0 times theorem prover too weak. 344 trivial. 0 not checked. [2018-10-26 21:59:59,010 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-26 21:59:59,010 INFO L225 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-10-26 21:59:59,019 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-26 21:59:59,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 21:59:59,274 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-26 22:00:05,859 WARN L179 SmtUtils]: Spent 6.45 s on a formula simplification. DAG size of input: 120 DAG size of output: 23 [2018-10-26 22:00:07,856 INFO L134 CoverageAnalysis]: Checked inductivity of 1571 backedges. 734 proven. 0 refuted. 0 times theorem prover too weak. 837 trivial. 0 not checked. [2018-10-26 22:00:07,878 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-10-26 22:00:07,878 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 7 [2018-10-26 22:00:07,879 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-10-26 22:00:07,880 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-10-26 22:00:07,880 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2018-10-26 22:00:07,880 INFO L87 Difference]: Start difference. First operand 84601 states and 94719 transitions. Second operand 7 states. Received shutdown request... [2018-10-26 22:02:02,461 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-10-26 22:02:02,462 WARN L550 AbstractCegarLoop]: Verification canceled [2018-10-26 22:02:02,468 WARN L205 ceAbstractionStarter]: Timeout [2018-10-26 22:02:02,469 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.10 10:02:02 BoogieIcfgContainer [2018-10-26 22:02:02,469 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-10-26 22:02:02,469 INFO L168 Benchmark]: Toolchain (without parser) took 250635.31 ms. Allocated memory was 1.5 GB in the beginning and 3.9 GB in the end (delta: 2.4 GB). Free memory was 1.4 GB in the beginning and 1.3 GB in the end (delta: 100.0 MB). Peak memory consumption was 2.5 GB. Max. memory is 7.1 GB. [2018-10-26 22:02:02,471 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-10-26 22:02:02,471 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1635.93 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.3 GB in the end (delta: 137.4 MB). Peak memory consumption was 137.4 MB. Max. memory is 7.1 GB. [2018-10-26 22:02:02,472 INFO L168 Benchmark]: Boogie Procedure Inliner took 563.60 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 796.9 MB). Free memory was 1.3 GB in the beginning and 2.2 GB in the end (delta: -931.4 MB). Peak memory consumption was 56.1 MB. Max. memory is 7.1 GB. [2018-10-26 22:02:02,473 INFO L168 Benchmark]: Boogie Preprocessor took 286.27 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.2 GB in the end (delta: 56.9 MB). Peak memory consumption was 56.9 MB. Max. memory is 7.1 GB. [2018-10-26 22:02:02,474 INFO L168 Benchmark]: RCFGBuilder took 11845.92 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 1.7 GB in the end (delta: 459.0 MB). Peak memory consumption was 459.0 MB. Max. memory is 7.1 GB. [2018-10-26 22:02:02,475 INFO L168 Benchmark]: TraceAbstraction took 236296.07 ms. Allocated memory was 2.3 GB in the beginning and 3.9 GB in the end (delta: 1.6 GB). Free memory was 1.7 GB in the beginning and 1.3 GB in the end (delta: 363.8 MB). Peak memory consumption was 1.9 GB. Max. memory is 7.1 GB. [2018-10-26 22:02:02,480 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 1635.93 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.3 GB in the end (delta: 137.4 MB). Peak memory consumption was 137.4 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 563.60 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 796.9 MB). Free memory was 1.3 GB in the beginning and 2.2 GB in the end (delta: -931.4 MB). Peak memory consumption was 56.1 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 286.27 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.2 GB in the end (delta: 56.9 MB). Peak memory consumption was 56.9 MB. Max. memory is 7.1 GB. * RCFGBuilder took 11845.92 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 1.7 GB in the end (delta: 459.0 MB). Peak memory consumption was 459.0 MB. Max. memory is 7.1 GB. * TraceAbstraction took 236296.07 ms. Allocated memory was 2.3 GB in the beginning and 3.9 GB in the end (delta: 1.6 GB). Free memory was 1.7 GB in the beginning and 1.3 GB in the end (delta: 363.8 MB). Peak memory consumption was 1.9 GB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 104]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 104). Cancelled while BasicCegarLoop was constructing difference of abstraction (84601states) and FLOYD_HOARE automaton (currently 10 states, 7 states before enhancement),while ReachableStatesComputation was computing reachable states (16683 states constructedinput type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 591 locations, 1 error locations. TIMEOUT Result, 236.2s OverallTime, 11 OverallIterations, 7 TraceHistogramMax, 209.1s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 3450 SDtfs, 13820 SDslu, 1894 SDs, 0 SdLazy, 36198 SolverSat, 4421 SolverUnsat, 44 SolverUnknown, 0 SolverNotchecked, 195.9s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 2223 GetRequests, 2178 SyntacticMatches, 4 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 9.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=84601occurred in iteration=10, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 4.3s AutomataMinimizationTime, 10 MinimizatonAttempts, 35088 StatesRemovedByMinimization, 8 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.7s SsaConstructionTime, 1.3s SatisfiabilityAnalysisTime, 15.0s InterpolantComputationTime, 7893 NumberOfCodeBlocks, 7893 NumberOfCodeBlocksAsserted, 15 NumberOfCheckSat, 7878 ConstructedInterpolants, 200 QuantifiedInterpolants, 22708113 SizeOfPredicates, 1 NumberOfNonLiveVariables, 2736 ConjunctsInSsa, 14 ConjunctsInUnsatCore, 15 InterpolantComputations, 9 PerfectInterpolantSequences, 10999/11765 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown